CN114161685A - Mold opening and closing device of blow molding machine for preventing product from being stretched and deformed by self gravity - Google Patents
Mold opening and closing device of blow molding machine for preventing product from being stretched and deformed by self gravity Download PDFInfo
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- CN114161685A CN114161685A CN202111479601.1A CN202111479601A CN114161685A CN 114161685 A CN114161685 A CN 114161685A CN 202111479601 A CN202111479601 A CN 202111479601A CN 114161685 A CN114161685 A CN 114161685A
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- blow molding
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- 238000000071 blow moulding Methods 0.000 title claims abstract description 20
- 230000005484 gravity Effects 0.000 title claims abstract description 18
- 244000309464 bull Species 0.000 claims abstract description 7
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/70—Removing or ejecting blown articles from the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of blow molding equipment, and discloses a mold opening and closing device of a blow molding machine, which is used for preventing a product from being stretched and deformed by self gravity. Avoid goods to take place tensile deformation's blowing machine by self gravity and open and shut mould device, left side lower mould drives first slider and outwards removes, right side lower mould drives the second slider and outwards removes, promote articulated gear rotation respectively through first slider and second slider, make the contained angle increase between the removal bull stick, drive and pull and connect pole rebound, make upper left mould and upper right mould and plastic products separation, through starting the drawing of patterns step by step from the plastic products bottom, plastic products has been avoided taking place tensile deformation's problem because of self gravity and has appeared.
Description
Technical Field
The invention relates to the technical field of blow molding equipment, in particular to a mold opening and closing device of a blow molding machine, which can prevent a product from being stretched and deformed by the self gravity.
Background
When the left template and the right template are separated, the plastic product is easily damaged by pulling, the molding quality of the plastic product is influenced, and the practicability is low; and inconvenient to accept the plastic products after the shaping, the plastic products is because the drawing that receives self gravity takes place miniature change easily, leads to using the reliability lower.
Therefore, the mold opening and closing device of the blow molding machine needs to prevent the product from being stretched and deformed by self gravity, and has the function of preventing the plastic product from being stretched and deformed by self gravity.
The left lower die drives the first sliding block to move outwards, the right lower die drives the second sliding block to move outwards, the first sliding block and the second sliding block are used for respectively pushing the hinged gears to rotate, so that the included angle between the moving rotating rods is increased, the traction connecting rods are driven to move upwards, the left upper die and the right upper die are separated from the plastic products, and the plastic products are subjected to step-by-step demolding from the bottoms of the plastic products.
Disclosure of Invention
In order to achieve the purpose of avoiding the problem that the plastic product is stretched and deformed due to the self gravity, the invention provides the following technical scheme: the mold opening and closing device of the blow molding machine for preventing the products from being stretched and deformed by self gravity comprises an equipment frame, wherein the bottom of the equipment frame is fixedly connected with a hydraulic machine, the top of the hydraulic machine is fixedly connected with a lifting rod, the top of the lifting rod is fixedly connected with a bottom template, the outer side of the bottom template is movably connected with a left lower mold, the top of the left lower mold is movably connected with a left upper mold, the outer side of the left lower mold is fixedly connected with a first slide block, the front of the first slide block is fixedly connected with a hinged gear, the outer side of the hinged gear is fixedly connected with a rotating fulcrum, the back of the rotating fulcrum is fixedly connected with a moving rotating rod, the top of the moving rotating rod is fixedly connected with a traction connecting rod, the outer side of the bottom template is movably connected with a right lower mold, the top of the right lower mold is movably connected with a right upper mold, the outer side of the right lower mold is fixedly connected with a second slide block, and the front of the second slide block is also fixedly connected with a hinged gear, a rotating fulcrum shaft is fixedly connected to the outer side of the hinged gear, a moving rotating rod is fixedly connected to the back of the rotating fulcrum shaft, a traction connecting rod is fixedly connected to the top of the moving rotating rod, a rotating motor is fixedly connected to the inside of the equipment rack, a rotating shaft is fixedly connected to the top of the rotating motor, and a rotating bottom plate is fixedly connected to the top of the rotating shaft;
the inside sliding tray that has seted up of equipment rack, the inside swing joint of sliding tray has the removal axle, remove the positive fixedly connected with of axle and remove the push rod, the inside fixedly connected with limiting plate of equipment rack, the inside spacing groove of having seted up of limiting plate.
Preferably, the outer side of the movable rotating rod is movably connected with two rotating fulcrum shafts, the outer sides of the rotating fulcrum shafts are respectively and movably connected with a hinged gear, and the movable rotating rod is driven to obliquely move towards the upper left side through the rotation of the hinged gears, so that the upper left die and the upper right die are driven to be separated from the plastic product.
As an optimization, the inner side of the equipment support is fixedly connected with an installation block, the back of the hinged gear is movably connected to the front of the installation block, the two hinged gears are meshed with each other, and a complete driving structure is formed by the hinged gears and the movable rotating rod.
Preferably, the outer side of the rotating bottom plate is in movable contact with the inner side of the bottom template, the outer side of the rotating bottom plate is in movable contact with the outer side of the moving shaft, and the rotating motor drives the rotating bottom plate to rotate so as to drive the moving shaft to move.
As optimization, the top of the movable push rod is fixedly connected to the inner side of the left lower die, the bottom of the movable push rod is fixedly connected to the inner side of the right lower die, and when the movable push rod moves, the left lower die and the right lower die can be pushed to move.
As optimization, the outer side of the movable push rod is movably connected inside the limiting groove, the front surface of the movable shaft is movably contacted with the back surface of the movable push rod, and the movable push rod is driven to reciprocate when the movable shaft moves.
Preferably, the number of the rotating bottom plates is two, the inner sides of the rotating bottom plates are in mutual contact, and the rotating bottom plates and the bottom template are spliced into a whole to be used as a bearing bottom plate of the whole die.
As optimization, the left upper die and the left lower die are internally provided with molding die cavities, and the right upper die and the right lower die are internally provided with molding modules to form a complete blow molding die.
And as optimization, the hydraulic machine and the rotating motor are electrically connected to a control system, and the equipment is automatically controlled to run by the control system.
The invention has the beneficial effects that: avoid goods to take place the blowing machine mould device that opens and shuts of tensile deformation by self gravity, left side lower mould drives first slider outwards removal, right side lower mould drives the second slider outwards removal, promote articulated gear revolve respectively through first slider and second slider, make the contained angle increase between the removal bull stick, the pole rebound is drawn in the drive, make upper left mould and upper right mould and plastic products separation, through starting the drawing of patterns step by step from the plastic products bottom, plastic products has been avoided taking place tensile deformation's problem appearance because of self gravity.
Drawings
FIG. 1 is a schematic view of the overall structure of the mold of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure of the present invention B;
FIG. 3 is a schematic cross-sectional view of the structure of the present invention A;
FIG. 4 is a schematic top view of a bottom template structure according to the present invention;
FIG. 5 is a schematic top view of the rotating base plate structure of the present invention;
FIG. 6 is a three-dimensional schematic view of the moving push rod of the present invention.
In the figure: 1. an equipment rack; 2. a hydraulic press; 3. a lifting rod; 4. a bottom template; 5. a left lower die; 6. a first slider; 7. a left upper die; 8. an articulation gear; 9. rotating the fulcrum shaft; 10. moving the rotating rod; 11. a right lower die; 12. a second slider; 13. a right upper die; 14. a traction connecting rod; 15. mounting blocks; 16. a limiting groove; 17. rotating the motor; 18. a rotating shaft; 19. rotating the bottom plate; 20. a sliding groove; 21. a movable shaft; 22. moving the push rod; 23. and a limiting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the mold opening and closing device of the blow molding machine for preventing the product from being stretched and deformed by the self gravity comprises an equipment frame 1, a hydraulic machine 2 is fixedly connected to the bottom of the equipment frame 1, the hydraulic machine 2 and a rotating motor 17 are electrically connected to a control system, the operation of the equipment is automatically controlled by the control system, a lifting rod 3 is fixedly connected to the top of the hydraulic machine 2, a bottom template 4 is fixedly connected to the top of the lifting rod 3, a left lower mold 5 is movably connected to the outer side of the bottom template 4, a left upper mold 7 is movably connected to the top of the left lower mold 5, a first slide block 6 is fixedly connected to the outer side of the left lower mold 5, a hinge gear 8 is fixedly connected to the front side of the first slide block 6, a rotating fulcrum 9 is fixedly connected to the outer side of the hinge gear 8, a moving rotating rod 10 is fixedly connected to the back side of the rotating fulcrum 9, a traction connecting rod 14 is fixedly connected to the top of the moving rotating rod 10, two rotating fulcrums 9 are movably connected to the outer side of the moving rotating rod 10, the outer sides of the rotating fulcrum shafts 9 are movably connected with hinged gears 8, and the rotating shaft 10 is driven to obliquely move towards the upper left side through the rotation of the hinged gears 8, so that the upper left die and the upper right die are driven to be separated from the plastic product;
the outer side of the bottom template 4 is movably connected with a right lower die 11, the top of the right lower die 11 is movably connected with a right upper die 13, the outer side of the right lower die 11 is fixedly connected with a second sliding block 12, the front of the second sliding block 12 is also fixedly connected with a hinged gear 8, the outer side of the hinged gear 8 is also fixedly connected with a rotating fulcrum 9, the back of the rotating fulcrum 9 is also fixedly connected with a movable rotating rod 10, the top of the movable rotating rod 10 is also fixedly connected with a traction connecting rod 14, the inner side of the equipment bracket is fixedly connected with an installation block 15, the back of the hinged gear 8 is movably connected with the front of the installation block 15, the two hinged gears 8 are mutually meshed, and a complete driving structure is formed by the hinged gear 8 and the movable rotating rod 10;
the inside of the equipment rack 1 is fixedly connected with a rotating motor 17, the top of the rotating motor 17 is fixedly connected with a rotating shaft 18, the top of the rotating shaft 18 is fixedly connected with two rotating bottom plates 19, the inner sides of the rotating bottom plates 19 are in contact with each other, and the rotating bottom plates 19 and the bottom template 4 are spliced into a whole to be used as a bearing bottom plate of the whole mold;
referring to fig. 3-6, a sliding groove 20 is formed in the equipment rack 1, a moving shaft 21 is movably connected in the sliding groove 20, the outer side of the rotating bottom plate 19 is movably contacted with the inner side of the bottom mold plate 4, the outer side of the rotating bottom plate 19 is movably contacted with the outer side of the moving shaft 21, the rotating motor 17 drives the rotating bottom plate 19 to rotate, so as to drive the moving shaft 21 to move, a moving push rod 22 is fixedly connected to the front side of the moving shaft 21, the top of the moving push rod 22 is fixedly connected to the inner side of the left lower mold 5, the bottom of the moving push rod 22 is fixedly connected to the inner side of the right lower mold 11, when the moving push rod 22 moves, the left lower mold 5 and the right lower mold 11 can be pushed to move, a limit plate 23 is fixedly connected in the equipment rack 1, a limit groove 16 is formed in the limit plate 23, the outer side of the moving push rod 22 is movably connected in the limit groove 16, the front side of the moving shaft 21 is movably contacted with the back side of the moving push rod 22, when the moving shaft 21 moves, the moving push rod 22 is driven to reciprocate.
The working principle is as follows: forming die cavities are formed in the left upper die 7 and the left lower die 5, forming modules are formed in the right upper die 13 and the right lower die 11 to form a complete blow molding die, the inner sides of the rotating bottom plate 19 are in contact with each other, and the rotating bottom plate 19 and the bottom die plate 4 are spliced into a whole to be used as a bearing bottom plate of the whole die;
after the blow molding processing is finished, the lifting rod 3 is driven to descend through the hydraulic machine 2, so that the bottom template 4 descends, the bottom of the plastic product is demolded first, the control system controls the rotating motor 17 to drive the rotating shaft 18 to rotate, so that the rotating bottom plate 19 is driven to rotate, the rotating bottom plate 19 rotates along the bottom of the moving push rod 22, so that the moving shaft 21 is driven to move, when the moving shaft 21 moves, the moving push rod 22 is driven to move in a reciprocating mode, the top of the moving push rod 22 is fixedly connected to the inner side of the left lower die 5, the bottom of the moving push rod 22 is fixedly connected to the inner side of the right lower die 11, and when the moving push rod 22 moves, the left lower die 5 and the right lower die 11 can be pushed to move;
left side lower mould 5 drives first slider 6 and outwards removes, right side lower mould 11 drives second slider 12 and outwards removes, the inboard fixedly connected with installation piece 15 of equipment support, articulated gear 8 back swing joint is positive at installation piece 15, two articulated gear 8 intermeshing, form complete drive structure through articulated gear 8 and removal bull stick 10, promote articulated gear 8 rotation respectively through first slider 6 and second slider 12, make the contained angle increase between the removal bull stick 10, drive and pull extension rod 14 and upwards remove, make upper left mould 7 and upper right mould 13 and plastic products separation, through drawing of patterns step by step from the plastic products bottom, plastic products has been avoided taking place tensile deformation's problem appearance because of self gravity.
In conclusion, avoid the blowing machine that goods take place tensile deformation by self gravity to open and shut mould device, left lower mould 5 drives first slider 6 and outwards removes, right lower mould 11 drives second slider 12 and outwards removes, the inboard fixedly connected with installation piece 15 of equipment support, articulated gear 8 back swing joint is in installation piece 15 openly, two articulated gear 8 intermeshing, form complete drive structure through articulated gear 8 and removal bull stick 10, promote articulated gear 8 rotation respectively through first slider 6 and second slider 12, make the contained angle between the removal bull stick 10 increase, drive and pull and connect pole 14 and upwards remove, make upper left mould 7 and upper right mould 13 and plastic products separation, through the drawing of patterns step by step from the plastic products bottom, plastic products has avoided the problem of tensile deformation because of self gravity to appear.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (9)
1. Avoid goods to take place tensile deformation's blowing machine mould opening and closing device by self gravity, including equipment frame (1), its characterized in that: the equipment is characterized in that a hydraulic machine (2) is fixedly connected to the bottom of the equipment rack (1), a lifting rod (3) is fixedly connected to the top of the hydraulic machine (2), a bottom template (4) is fixedly connected to the top of the lifting rod (3), a left lower die (5) is movably connected to the outer side of the bottom template (4), a left upper die (7) is movably connected to the top of the left lower die (5), a first slider (6) is fixedly connected to the outer side of the left lower die (5), a hinged gear (8) is fixedly connected to the front side of the first slider (6), a rotating fulcrum (9) is fixedly connected to the outer side of the hinged gear (8), a moving rotating rod (10) is fixedly connected to the back side of the rotating fulcrum (9), a traction connecting rod (14) is fixedly connected to the top of the moving rotating rod (10), a right lower die (11) is movably connected to the outer side of the bottom template (4), and a right upper die (13) is movably connected to the top of the right lower die (11), a second sliding block (12) is fixedly connected to the outer side of the right lower die (11), a hinged gear (8) is fixedly connected to the front face of the second sliding block (12) in the same way, a rotating fulcrum (9) is fixedly connected to the outer side of the hinged gear (8) in the same way, a movable rotating rod (10) is fixedly connected to the back face of the rotating fulcrum (9) in the same way, a traction connecting rod (14) is fixedly connected to the top of the movable rotating rod (10) in the same way, a rotating motor (17) is fixedly connected to the inner part of the equipment rack (1), a rotating shaft (18) is fixedly connected to the top of the rotating motor (17), and a rotating bottom plate (19) is fixedly connected to the top of the rotating shaft (18);
the inside sliding tray (20) of having seted up of equipment frame (1), the inside swing joint of sliding tray (20) has removal axle (21), remove axle (21) and openly fixedly connected with removal push rod (22), the inside fixedly connected with limiting plate (23) of equipment frame (1), limiting groove (16) have been seted up to limiting plate (23).
2. The mold opening and closing device of a blow molding machine for preventing the product from being stretched and deformed by the self-gravity of claim 1, wherein: the plastic product separating device is characterized in that two rotating support shafts (9) are movably connected to the outer sides of the moving rotating rods (10), hinged gears (8) are movably connected to the outer sides of the rotating support shafts (9), and the moving rotating rods (10) are driven to obliquely move towards the upper left side through rotation of the hinged gears (8), so that the upper left die and the upper right die are driven to be separated from a plastic product.
3. The mold opening and closing device of a blow molding machine for preventing the product from being stretched and deformed by the self-gravity of claim 1, wherein: the inboard fixedly connected with installation piece (15) of equipment support, articulated gear (8) back swing joint is positive at installation piece (15), and two articulated gear (8) intermeshing form complete drive structure through articulated gear (8) and removal bull stick (10).
4. The mold opening and closing device of a blow molding machine for preventing the product from being stretched and deformed by the self-gravity of claim 1, wherein: the outer side of the rotating bottom plate (19) is movably contacted with the inner side of the bottom template (4), and the outer side of the rotating bottom plate (19) is movably contacted with the outer side of the moving shaft (21).
5. The mold opening and closing device of a blow molding machine for preventing the product from being stretched and deformed by the self-gravity of claim 1, wherein: the top of the movable push rod (22) is fixedly connected to the inner side of the left lower die (5), and the bottom of the movable push rod (22) is fixedly connected to the inner side of the right lower die (11).
6. The mold opening and closing device of a blow molding machine for preventing the product from being stretched and deformed by the self-gravity of claim 1, wherein: the outer side of the movable push rod (22) is movably connected inside the limiting groove (16), and the front surface of the movable shaft (21) is movably contacted with the back surface of the movable push rod (22).
7. The mold opening and closing device of a blow molding machine for preventing the product from being stretched and deformed by the self-gravity of claim 1, wherein: the number of the rotating bottom plates (19) is two, and the inner sides of the rotating bottom plates (19) are in contact with each other.
8. The mold opening and closing device of a blow molding machine for preventing the product from being stretched and deformed by the self-gravity of claim 1, wherein: the forming die cavity is formed in the upper left die (7) and the lower left die (5), and the forming die block is formed in the upper right die (13) and the lower right die (11).
9. The mold opening and closing device of a blow molding machine for preventing the product from being stretched and deformed by the self-gravity of claim 1, wherein: the hydraulic machine (2) and the rotating motor (17) are electrically connected to a control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111479601.1A CN114161685A (en) | 2021-12-06 | 2021-12-06 | Mold opening and closing device of blow molding machine for preventing product from being stretched and deformed by self gravity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111479601.1A CN114161685A (en) | 2021-12-06 | 2021-12-06 | Mold opening and closing device of blow molding machine for preventing product from being stretched and deformed by self gravity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114161685A true CN114161685A (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111479601.1A Pending CN114161685A (en) | 2021-12-06 | 2021-12-06 | Mold opening and closing device of blow molding machine for preventing product from being stretched and deformed by self gravity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114161685A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090069159A1 (en) * | 2007-09-10 | 2009-03-12 | Leao Wang | Folding mechanism of a treadmill |
| CN207224413U (en) * | 2017-09-27 | 2018-04-13 | 新昌县七星街道嘉星广告设计工作室 | A kind of ejecting structure of plastic mould |
| CN207310963U (en) * | 2017-08-22 | 2018-05-04 | 新昌县城南乡王氏机械配件厂 | A kind of Art Middle School Students easel |
| CN109676903A (en) * | 2019-01-08 | 2019-04-26 | 山东福润橡塑科技有限公司 | A kind of blow moulding machine folding mould device |
| CN212400251U (en) * | 2020-04-30 | 2021-01-26 | 苏州新路塑业有限公司 | Injection mold of lower mould easily closes |
| CN213953134U (en) * | 2020-11-28 | 2021-08-13 | 江苏中冠传智展览设计策划有限公司 | A booth for multimedia interactive display |
-
2021
- 2021-12-06 CN CN202111479601.1A patent/CN114161685A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090069159A1 (en) * | 2007-09-10 | 2009-03-12 | Leao Wang | Folding mechanism of a treadmill |
| CN207310963U (en) * | 2017-08-22 | 2018-05-04 | 新昌县城南乡王氏机械配件厂 | A kind of Art Middle School Students easel |
| CN207224413U (en) * | 2017-09-27 | 2018-04-13 | 新昌县七星街道嘉星广告设计工作室 | A kind of ejecting structure of plastic mould |
| CN109676903A (en) * | 2019-01-08 | 2019-04-26 | 山东福润橡塑科技有限公司 | A kind of blow moulding machine folding mould device |
| CN212400251U (en) * | 2020-04-30 | 2021-01-26 | 苏州新路塑业有限公司 | Injection mold of lower mould easily closes |
| CN213953134U (en) * | 2020-11-28 | 2021-08-13 | 江苏中冠传智展览设计策划有限公司 | A booth for multimedia interactive display |
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Application publication date: 20220311 |